Clunky motors!!!

wbrown

Member
I have just finished assembling and programming the dji wookong on my cinestar 6. First attempt to fly it after getting the motors spinning the correct ways I have found that three will usually clunk on throttle up and not really spin at all. They alternate when turning everything off and on again so I can assume the power distribution is fine. Is this a problem with the programming of the esc's? I'm using 40a hobbywing pentiums and torxpower motors from quadcopter.co.uk.

Any help would be much appreciated as I reall cant wait to get this thing flying!

Will
 

RTRyder

Merlin of Multirotors
I have just finished assembling and programming the dji wookong on my cinestar 6. First attempt to fly it after getting the motors spinning the correct ways I have found that three will usually clunk on throttle up and not really spin at all. They alternate when turning everything off and on again so I can assume the power distribution is fine. Is this a problem with the programming of the esc's? I'm using 40a hobbywing pentiums and torxpower motors from quadcopter.co.uk.

Any help would be much appreciated as I reall cant wait to get this thing flying!

Will

Did you do throttle calibration on each ESC? If not you need to do that first. Also, what are the settings the ESC are programmed to? With similar motors (Avroto) I found mid or high timing to work best depending on which flight controller I was using.

I'm using AXI 2814-22 with Maytech 30A ESC on my CineStar and it's super smooth in the air, set your gains to 300 for basic pitch and roll, yaw to 250 and vertical to 250 with ATTI of 65 to 70% and don't overprop it, the WKM likes much smaller props than you would use with the MK electronics. I use either 11 x 5 Graupners or APC 12 x 6 thin electric which have a very similar blade profile to the Graupners. The smoothest video I've done so far was with the Graupner props, haven't had a chance to really try out the APC doing video mainly becssue the weather here has been crappy lately.

Ken
 

wbrown

Member
I did try. The instructions are to turn on transmitter, push throttle stick all the way up then plug in esc. When I do it just goes into normal start up mode. Do I need to do them one by one? At the moment everything is plugged in ready to go.

Thanks for your help

Will
 

RTRyder

Merlin of Multirotors
I did try. The instructions are to turn on transmitter, push throttle stick all the way up then plug in esc. When I do it just goes into normal start up mode. Do I need to do them one by one? At the moment everything is plugged in ready to go.

Thanks for your help

Will

Yes, each one has to be done by itself. Disconnect all the ESCs from the the WKM and plug one directly into the throttle port on the RX and then repeat the procedure you're using. Do the same for each ESC then plug them back into the WKM and I think you'll find they all start then.

Ken
 

wbrown

Member
Ken you are a legend! It works. Thankyou so much. I was really worried for a while there that I might be re-soldering everything again. Stay tuned, as I will post the build up soon.

Will
 

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